A pregnancy test attempts to determine whether a woman is pregnant . Markers that indicate pregnancy are found in urine and blood, and pregnancy tests require sampling one of these substances. The first of these markers to be discovered, human chorionic gonadotropin (hCG), was discovered in 1930 to be produced by the trophoblast cells of the fertilised ovum (blastocyst). While hCG is a reliable marker of pregnancy, it cannot be detected until after implantation: this results in false negatives if the test is performed during the very early stages of pregnancy. Obstetric ultrasonography may also be used to detect pregnancy. Obstetric ultrasonography was first practiced in the 1960s; the first home test kit for hCG was released in the mid-1970s.
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Premium Questions (527)
my fiance and I have been having very frequent unprotected sex for the past two months. I started what i assumed was my period a day 1/2 late, with very intense cramping, but only one day of heavy bleeding. One night later, while having sex, he...
I am 24, I had sex 5 days ago and took a plan b pill 6 hours after intercourse. I took a pregnancy test this am and this pm and both were positive. Could the positive home test be from that intercourse or was I already pregnant?
hi i missed my period by 15 days , i took pregnancy test on 26th XXXXXXX but got negative
my dr ask me to take dogest 100 is it safe
im 38 years old and my last 2 periods have come and gone but no period! I did recently stop taking my citlopram as I am unemployed and do not have insurance. I have taken 3 pregnancy tests and all come up negative. I did have slight cramping and...
Me and my partner got married last week, she was due her period at time of wedding ,so we got norethisterone tablets to delay them. We were asked at time if she could be pregnant and didnt think so. she took 3 tablets a day for 5 days. since then...
I have had 6 positive pregnancy tests. Also have most of the symptoms except not frequent nausea, just a couple times with vomiting. I'm also 44 years old. How likely are they truly positive and what are my odds of having a successful...
I had unprotected intercourse 2 weeks ago i didnt take the morning after pill than. I had sex again 6 days ago and than 2 days ago unprotected and took the morning after pill yesterday. I had some some thick white discharge today was just...
i am two weeks late on my period but the pregnancy tests are negative.I am on 20 mg inderal 5 times a day, 200 mg topomax twice a day, 325 xl wellbutrin once a day, 2 mg xanax 5 x a day and 2l.5 cr ambien once at...
A resident at an alheizemers facility kicked my lower abdomen x3 very hard. What is the risk that I will miscarry?
My wife is scheduled to have a leep procedure in a week..she just took a pregnancy test and it seems like she's 4-5 weeks pregnant...does this mean we will have to abort? It's med-high risk displaysia so I don't think it can wait till after the...
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Online Doctor Chat (935) - Pregnancy test
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User : i havent had my period since janurary and me and my boyfriend had unprotected sex the last week of feburary and two days ago i took a pregnancy test and it...
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User : pls help me, last friday i was on my 11th period day and my boyfriend and i were just palying in a doggy style then he cummed outside my vagina. im virgin and...
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User : i had tubal litigation 2 years ago i have a 23 day cycle and missed my period have mild cramps and white discharge and 2 days late took preg test 2 neg
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User : alright i have a little problem, im not sure if this is stupid, but i need to stop my anxiety about it
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User : i feel like i could be pregnant, but i havent had sex...
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Public Forum (3839) - Pregnancy test
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Hello. I was supposed to start my period on the 17 of this month and i didnt have anything until today and it is a little redish and i have cramping. I have been trying to get pregnant for about 3 months now and i was wondering if it is possible that i can still be pregnant? I took a pregnancy test on the 16 and it was negative. Can it be that...
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HI, I and my gf had intercourse wherein i ejacuated inside her . After that we took i-pill after 66 hours to be precise. But it has been a week and she had not got her periods .. Is she pregnant for sure ? When should be do pregnancy test ? how accurate is it ? and if she is pregant by what time should we go for abortion pills ...whats the...
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why would a urine pregnancy test be negative if your 3 months pregnant Does anyone know why a urine pregnancy test would be negative if your really pregnant and 3 months is that medically possible?
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Hi Doctor, My name is Swathi Chandrasekar. I got married on 15th November 2007. I have been trying to conceive from past 2months. I will let you know about my monthly cycle first: October 2008: 16th Nov 08: 14th Dec 08: 24th ( 39 days delay) I went for pregnancy test , but was negative. In the month of January around 16th or 17th i started...
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My wife is suffering from problem of irregular menustreal cycle. Her actual date for period was 11 th of september, 2008 but till date that period not arrived. For this we have taken test for suspected pregnancy if any by using Ciplas pregnancy test kit. It given negative result. Our Gynacologist madam prescribed her for RATIONAL THYROID PANEL...
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I am on antibiotics I have missed a period and also and inflamed cervix they did one pregnancy test at the doctors and it came back negative, the doctor told me I should keep takin pregnancy test for 2wks, do you know if antibiotics can affect a result of a pregnancy test or should I begin to think I am not pregnant please reply to this post
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I have been having those for about a year now. I had all the necesary tests done on me . Im waiting for the results. Im specially worried cause Im pregnant. Dont know what to do.
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I have usually had very low BP usually running 96/60 or there abouts. For the past two weeks it has been running 183/103 and a little lower. I had started getting nauseous about one week prior and have not had a period in almost two months. I have taken three home pregnancy tests all coming out negative. What could be wrong here? As a side not...
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i have not had my periods in ten weeks now and i am suffering from lower stomagh pain i have done a pregnancy test and it s showed neg the pain gets so bad that i cant walk and it s sore to laugh my breasts are sore and i sometimes feel light headed what could be wrong with me ?
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First off please dont tell me Hey its your fault or thats what condoms are made for there is no need to be rude i just want to know if you think im pregnant or not, im taking another test tomorrow but i wanna prepare myself Soo.. Okay now ill start from the beginning.. Im sexually active, but do not use condoms. I am on birthcontrol that i take...
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