Ttc my 4th child

Hi. Me and my husband is ttc our 4th child we are 27. ive gotten my iud ParaGard removed April 24,18 and was do for my period May 2-6.witch it came on time.my period also came on time this month but only for 2 days the 3day spotting for the rest. I obviously didn’t get pregnant last month is it possible I can get pregnant this month.has my iud been removed long enough to start trying to conceive? Even though my doctor told me I can become pregnant right away when I remove my IUD Mirena I got pregnant right away with my third child the month after I removed it. so I’m a little confused.