Whether pregnant or not. Cramps or not?

Hello dr i and my boyfriend had dry humping(ol the clothes on with me in jeans and my boyfriend in cotton trousers as well),the he touched my anus and inserted hiss finger then he went and washed his hands.After that i gave him a handjob and he also did fingering after that we washed our hands. My periods date was 2nd march but i got my period on 4th march.That time my bleeding was light means first day i had bleeding as usual my pad was fully red but the next day it got lighter half part of the pad was red and then third day again it was same then on fourth it became more lighter and finally fifth and sixth i had only spotting. I am worried whether it was an implantation bleeding or not?I didnot even got cramps but i am confused whether due to my yoga habits i didnt get cramps or not?Now in march during my ovulation period like from 17th to 24th i started getting white stringy discharge one day i also had only a single brown sport and reddish brown and white stringy discharge.