Hello and welcome to HCM.
Thank you for your query.
Although a few of your symptoms could be related to early
pregnancy, it is always best to rule out pregnancy first and then proceed to investigate other possibilities.
I would advise you to conduct a urine pregnancy test, using the kit available over the counter. The best time to use this would be around 20 days from the last day of sexual intercourse and on the first day of a missed period. An early morning urine sample is the most concentrated and best for an accurate result.
Once pregnancy is ruled out you could visit a doctor for further evaluation.
I hope I have succeeded in providing the information you were looking for. Please feel free to write back to me for any further clarifications. I would gladly help you.
Best wishes.