Possible pregnancy??? Help!

Question

On the 13th hubby and I had unprotected sex and he did not withdraw. Took a pregnancy test on the 31st it was negative. Today was my expected start date and my period is WAY light. I normally start out very heavy... I’m assuming it could be implantation but I have NO IDEA... when should I take another pregnancy test to see if I’m actually pregnant or not?

Answer

Do you know when you ovulated?
It is possible for implantation bleeding to occur at he time your period would be due. BUT .... implantation bleeding isn't common at all firstly (only around 30% of women have it), secondly  - it's light.. I mean light. It's when you wipe, doesn't reach your underwear most times and not normally necessary to wear sanitary products.
IF it is implantation bleeding it will not be red, it will not have clots, you will not have cramping, the bleeding will not get progressively heavier. IF it is implantation bleeding then a test should pop positive within 4 days of the start of the bleeding.
Implantation occurs between 6-12dpo.

Answer

I believe it’s too late for implantation bleeding. If you’re bleeding on your start date then it’s most likely your period. You cycle may just be abnormal for some reason.