Hi doc. Im a 41 year old lady, was put on ovacare and folic for 30 days while on my periods which was on 6th of Aug (Third day of my period). I received my next period on 31st Aug and my cycle has an average of 35 days. I had sex on 5th Sept and again on 18th Sept. I didn't get my period this month and was already having pregnancy symptoms by 2nd Sept of which I had to do a home test and it came out positive. My question is, which among the two days did I conceive or how old is my pregnancy. Thanks in advance.. Liz