TTC post MC—Help!!!

So I’ve been TTC for about 2 months since mc in April, this month my period started on the 2nd. Before first baby I was ALWAYS on time-every 33 days for 5 days. But since then my cycle has been so screwy- it was 22 days last month snd about 35 days this month.

ANYWAY

I had sex on the last day of my period and for three days after I quit bleeding I had thick mucus with what looked like light pink blood in it. Could it be implantation bleeding??

Also I wasn’t planning on testing until a couple weeks after my missed period but wanted opinions lol anything is helpful!